12593661 has 4 divisors (see below), whose sum is σ = 16791552. Its totient is φ = 8395772.

The previous prime is 12593597. The next prime is 12593663. The reversal of 12593661 is 16639521.

It is a happy number.

12593661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12593661 - 2⁶ = 12593597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12593663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2098941 + ... + 2098946.

It is an arithmetic number, because the mean of its divisors is an integer number (4197888).

Almost surely, 2^12593661 is an apocalyptic number.

It is an amenable number.

12593661 is a deficient number, since it is larger than the sum of its proper divisors (4197891).

12593661 is an equidigital number, since it uses as much as digits as its factorization.

12593661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4197890.

The product of its digits is 9720, while the sum is 33.

The square root of 12593661 is about 3548.7548520573. The cubic root of 12593661 is about 232.6576477358.

The spelling of 12593661 in words is "twelve million, five hundred ninety-three thousand, six hundred sixty-one".